The ________ are the mineral class that accounts for more than 90 percent of the Earth's crust
A) silicates
B) sulfates
C) carbonates
D) sulfides
Answer: A
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What geological process created the Grand Canyon?
A. wave erosion B. stream erosion C. glacial erosion D. groundwater erosion
Reconstruction of Paleozoic paleogeography is well documented by magnetic stripe data from
rocks 600 to 250 million years old on the ocean floor. Indicate whether the statement is true or false.
Even before the proposal of continental drift, paleontologists recognized that some sort of land connection was needed to account for the identical fossil organisms found on multiple continents
Select the correct hypothesis or hypotheses these paleontologists developed. A) Sea level falling B) A chain of island stepping stones C) Floating debris used as rafts and sea level rising D) A transoceanic land bridge E) Island stepping stones, transoceanic land bridge, and floating debris used for rafts
The Alpine Fault of New Zealand is an example of ________ plate boundary
A) a continental transform B) a continental-continental convergent C) a continental-continental divergent D) an oceanic-continental convergent E) an oceanic-oceanic convergent